| article html file updated | 7 February 2020 21:11 CET | Update | https://www.mdpi.com/2218-2004/5/1/2 |
| article html file updated | 22 September 2019 19:57 CEST | Update | N/A |
| article html file updated | 4 May 2019 15:55 CEST | Update | N/A |
| article html file updated | 27 March 2017 09:40 CEST | Update | N/A |
| article html file updated | 11 January 2017 14:42 CET | Original file | N/A |
| article xml uploaded. | 11 January 2017 14:41 CET | Original file | https://www.mdpi.com/2218-2004/5/1/2/xml |
| article pdf uploaded. | 11 January 2017 14:41 CET | Version of Record | https://www.mdpi.com/2218-2004/5/1/2/pdf |
